Centrifugal apparatus.



H. H. STEPHENS.

CENTRIFUGAL APPARATUS.-

APPLICATION msn Ame. 191s.

H. H. STEPHENS.

CENTRIFUGAL APPARATUS.

APPLICATION FILED APRzs, 1916.

CENTRIFUGAL APPATU'S.

l To all whom it may concern.'

Be it known that I, HARRY H. STEPHENS, a citizen of the United States,residing in the city of Paterson, State of New Jersey, have invented anew and useful Centrifiugal Apparatus, of which the following is aspecification.

My invention relates to centrifugal apparatus for the separation fromeach other or" materials of different weights or ot diierent characters,as liquids from solids, and particularly adaptable for the separation oioil from machined parte, metal chips, turnings., scrap, etc.

My invention resides in centrifugal apparatus wherein there is providedmeans for readily discharging the contents of the basket through thebottom thereof, such means comprising an unloading valve or removablebasket bottom which is preferably moved downwardly for the purposes ofdischarge into a chute or the like.

ll/ly invention resides also in the combination with centrifugalapparatus of another centrifugal machine for iltering or otherwiseacting1 upon the material separated by centrifugal action in the iirstnamed apparatus, the basket or the second machine being driven by thedriving mechanism ot the main centrifugal apparatus.

My invention resides in 'the features hereinafter described and claimed.

lior an illustration of one of the forms my invention may taire,reference is to be had to the accompanying drawings, in which:

Figure l is a vertical sectional view, some parts in elevation, througha form of apparatus embodying my invention..

llig. 2 is a side elevational view, on smaller scale, oit the apparatusshown in Fig. i.

Fig. 3 is a horizontal sectional view, some parts in plan view, taken onthe line 3-3 of Fig., 2

@n the base l are the pedestals 2 and the post 3 upon which aresupported the chute a upon which is secured the bottom 5 ci the cnrb 6.rlhe base l has the upwardly enA tending hollow projection 'l' in whichis disposed the cylindrical rubber 8 on whose upper edge rests thedanaro 9 oi the metallic member l0 in which rests the mem tallic conicalmember li having the ball bearings l2 and it-l for the vertically entendSpecieation of Letters Patent.

Patented Apr. 9, llil.

Application ilell pril 6, 1916. Serial No. 89,277.

rotating lower member 16 of the lower ball 4 bearing; and upon whichmember 16 rests the member 17 upon which rests the rotating member 18 ofthe upper ball bearing, the shaft 14 resting by a shoulder upon themember 18. rllhe conical member 1l is closed at its bottom and theinterior thereof is connected by oil tube 19 with a slight feed oilgauge and filler secured to side ot chute e, the'interior of the bearing1l being Hooded with oil whose level is determined by the height of ailgage and ller.

Embracing the members 7 and il is the pulley 2O Secured at 2l upon theshaft lli for driving the same, a belt 22 driving the pulley 20. rl`heshaft la entends upwardly through the upwardly extending portion 23 or"the bottom of the chute 4f. Above the member 23 is the spider 25 whosehub 26 is keyed at 27 to the shaft le. 'lhe spider 25 carries at theupper ends of its arms the bottom 27 ci? the centrifugal basket 28 whosesides incline upwardly and outwardly. Secured to the inner circular edgeof the bottom 27 is the valve seat ring 29 with which engages theconical member or valve 30 havgli ing the 'screw threaded sleeve 3l inwhich is threaded the sleeve 32 having 'the square or hexagonal head 33.'lhe valve member 30 is prevented from rotating about shaft lby two keysllll secured to shaft 4c. The center rim 30a of member 3() is providedwith keyways lab fitting over keys 14a but allowing member 30 to movefreely longitudinally oi the shaft la. The sleeve 32 is shouldered onits inside at Blagainst ashoulder on the shaft le and the sleeve 32 isheld against the shoulder 34; by the washer or nut 35 threaded upon theshaft le. lThe shaft la extends upwardly freely through the central boss36 on the basket cover 37 having the knobs or handles 38. rllhe baslretcover 37 and boss 36 rest upon the upper edge of basket 28 and top ofwasher or nut l 37 is the 35, respectively. Above the cover hand wheel39 whose hub do is threaded upon the upper end of the shaft la to pressthe cover 37 downwardly and hold the same in place. At el, on the insideci' the hub e0, is a square or hexagonal socket adapted to receive thesquare or hexagonal head oi the sleeve dit,

' ing flange 45 on the'cover 37. On the ring member 43 are disposed theknobs or handles 46.

Communicating with the interior of the curb 6 at its bottom is thedraw-off cock 47 through which liquid separated by centrifugal actionmay be drawn ofl" into the centrifugal basket 48 vhaving perforationsand supplied with a filter lining in well known manner. The basket 48 issecured by its bottom 49 upon the upper end of the shaft 50 having avertical bearing in the sleeve 51 in the vertically extending bearingblock 52 supported by its base 53 upon the bracket 54 on the post 3.'.llhe` shaft 50 rests on its lower end upon the ball 55 in an openingwith which communicatesl the oil pipe 56 receiving oil from the cup 56afor lubricating the bearing of the basket 48. Basket 48 is housed in thecurb 57 supported on the bracket 58 on the post 3, and having the covermember 59. The filtered oil or liquid is drawn off from the curb 57through the cock 60, Fig. 2.

On the basket bottom 49 is a sleeve 61 extending downwardly through theupturned annular flange 62 on the bottom of the curb 57. On the sleeve61 is the pulley 63 driven by the belt 64, Figs. 2 and 3, which passesover and is driven by the pulley 65 secured to the idler pulley or wheel66 which is pressed against and driven by the main belt 22. VThe pulley65 and idler 66 are supported upon a stud 67 secured in the outer end 68ofthe arm 69 whose other end 70 is pivoted upon the stud 7l carried bythe bracket 54 and co-axial with the shaft 50 and the pulley 63. Throughthe upper end of the bracket 72, Figs. 2 and 3, secured upon the base lis a screw threaded rod 73 on which is threaded the hand wheel 74. Oneend of the rod 73 has a head 75, Fig. 3, having a sphericalsurfacebearing in a spherical socket in the boss 76 upon the arm 69.Surrounding the rod 73 is the spring 77 which is under compression be-ltween the upper end of the bracket 72 and the web 78 of the arm 69. Byturning the wheel '74 the arm 69 will be drawn toward the bracket 72. orif the wheel 74 is moved in opposite direction the spring 77 will forcethe arm 69 away from the bracket 72. By this means the idler 66 isadjusted as to its pressure against its driving belt 22, all move- .mentof the arm 67 being pivotal about the stud 7i.

Adapted to press against the face of the pulley 2O is tbe brake shoe 7 9carried by the 36 secured upon the shaft 8i. on which is secured, lever8.?- having feat rom the face of the charged into the basket 28 and thecover 37 placed thereon and thereafter the hand wheel 39 screwed on theupper end of the shaft 14 against the cover 37. Thereafter the ringmember 43 may be placed in position illustrated.

The apparatus is then driven by the belt 22 and the basket 28 revolvedat suitably high speed, with the result that by centrifugal force theoil is separated from the metal parts and accumulates on the basket 28and flows up along its upwardly and outwardly inclined side and passesover its upper edge through the joint between its upper edge and thecover 37 into the curb 6, where it collects in the bottom of the member5 and passes off through the cock 47 into the centrifugal basket 48which is driven through the idler 66, pulley 65, belt 64, and pulley 63,the oil being operated upon by centrifugal force and passing outwardlythrough the filtering medium and through the perforations in the drum 48into the interior of the curb 57 from which it 84 normally holds the isdrawn ofi' from cock 60 infiltered and purified condition.

At the end of a run the wheel 39 is removed and thereafter the cover 37with ring 43 resting thereon. Then the wheel 39 is used as a wrench, thesquare or hexagonal opening 41 being placed over the square or hexagonalhead 33 of threaded sleeve 32. Upon turning the wheel the sleeve 32 willrotate, but will maintain a fixed position longitudinally of the shaft14.. The rotation of the sleeve 32 drives the sleeve 31 downwardly,thereby lowering the valve or member 30 away from its seat 29 into thefree space between the arms of the spider 25. rlhis in effect opens thebottom of the basket and all of the solid contents thereof may be passedout through the opening through which it falls into the chute 4 whichdelivers the solid material into any desired receptacle.

By reversing theoperation the member 31 is restored to its normalposition indicated, and a new charge of material may introduced into thebasket 28, the cover 37 replaced, the wheel 39 replaced in the positionillustrated, ring 43 replaced, and the operation above describedrepeated.

@Vliet Il claim is:

1. rlhe combination with a rotary shaft, ef a spider secured thereon,said spider coinprising arras having upturned ends, a centrifugal.basket9 a buttare therefor to iraaaa

said ends of said arms, said bottom having a central opening within saidarms, a valve member adapted to close said opening, and means for movingsaid valve member downward into the space between the ends of said arms,to open said opening.

2. The combination with a rotary shaft, of a spider secured thereon,said spider comprising arms having upturned ends, a centrifugal basket,a bottom therefor secured to said ends of said arms, said bottom havinga central opening within said arms, a valve member adapted to close saidopening, said shaft extending into said basket, and meansl supported onsaid shaft within said basket for moving said valve member downward intothe space between the ends of said spider arms, to open said opening.

3. The combination with a rotary shaft, of a spider secured thereon,said spider having arms with upturned substantially vertical ends, acentrifugal basket, a bottom therefor secured to said ends of said arms,said bottom having a central opening within said arms, a valve memberadapted to close said opening, and means to opensaid opening comprisingmeans for moving said valve member downwardly into the space between theends of said arms.

4. The combination with a centrifugal basket, of a bottom therefor,having apen-l tral. opening for discharge of load, means for normallyclosing said opening, a spider support for said basket having a centralhub, a chute beneath said basket for receiving the load dischargedthrough said opening, a rotary shaft for said basket passing throughsaid chute and said hub, the opening through said chute being greater indiameter than that of the shaft and less in diameter than that of thehub, and a collar for said opening in said chute extending upwardly tosaid hub, whereby the hub prev vents any portion of the load, upondischarge, from passing through said opening 1n said chute.'

5. The combination with a centrifugal basket, of a curb therefor, abottom for said basket having can opening therethrough for discharge ofload, a spider support for said basket having a central hub portion, achute beneath said basket for receiving the load discharged, a verticalrotary shaft for said basket passing through an, opening in said chuteand an opening in said hub portion, the diameter of the opening in saidchute being greater than that of the shaft, a recess in the bottom ofsaid hub portion around said shaft, an upturned collar for said openingin said chute extending into the recess in said hub, whereby a ortion ofthe load is prevented, upon disc arge, from passing through the openingin said chute.

6. The combination with a rotary shaft, of a spider secured thereon,said spider comprising arms, a centrifugal basket, a bottom thereforsecured to the outer ends of said arms,.said bottom having a centralopening within said arms, a valve member adapted to close said opening,the lower portion of said opening having sloping Walls, and means formoving said valve member downwardly to discharge the contents of thebasket, the sloping walls of the valve serving to receive and direct thedischarge.

7. The combination with a rotary shaft, of a spider secured thereon,said spider comprising arms having upturned ends, a centrifugal basket,a bottom therefor secured to l said ends of said arms, said bottomhaving a central opening within said arms, a valve member adapted toclose said opening, means for moving said valve member into the spacebetween said arms, said valve member being limited in its upward travelby said bottom and in its downward travel by said arms.

In testimony whereof I have hereunto aiiixed my signature this 4th dayof April, 1916.

HARRY H. STEPHENS.

